private void CameraCaptureTaskOnCompleted(object sender, PhotoResult photoResult)
{
if (photoResult.TaskResult == TaskResult.None)
{
tcs.TrySetException(photoResult.Error);
return;
}
if (photoResult.TaskResult == TaskResult.Cancel)
{
tcs.TrySetResult(null);
return;
}
CameraResult result = new CameraResult();
result.Picture = ImageSource.FromStream(() => photoResult.ChosenPhoto);
result.FilePath = photoResult.OriginalFileName;
tcs.TrySetResult(result);
}
public static void OnResult(Result resultCode)
{
if (resultCode == Result.Canceled)
{
tcs.TrySetResult(null);
return;
}
if (resultCode != Result.Ok)
{
tcs.TrySetException(new Exception("Unexpected error"));
return;
}
CameraResult res = new CameraResult();
res.Picture = ImageSource.FromFile(file.Path);
res.FilePath = file.Path;
tcs.TrySetResult(res);
}
public Task<CameraResult> TakePictureAsync()
{
var tcs = new TaskCompletionSource<CameraResult>();
Camera.TakePicture(UIApplication.SharedApplication.KeyWindow.RootViewController, (imagePickerResult) => {
if (imagePickerResult == null)
{
tcs.TrySetResult(null);
return;
}
var photo = imagePickerResult.ValueForKey(new NSString("UIImagePickerControllerOriginalImage")) as UIImage;
// You can get photo meta data with using the following
// var meta = obj.ValueForKey(new NSString("UIImagePickerControllerMediaMetadata")) as NSDictionary;
var documentsDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
string jpgFilename = Path.Combine(documentsDirectory, Guid.NewGuid() + ".jpg");
NSData imgData = photo.AsJPEG();
NSError err = null;
if (imgData.Save(jpgFilename, false, out err))
{
CameraResult result = new CameraResult();
result.Picture = ImageSource.FromStream(imgData.AsStream);
result.FilePath = jpgFilename;
tcs.TrySetResult(result);
}
else
{
tcs.TrySetException(new Exception(err.LocalizedDescription));
}
});
return tcs.Task;
}
